Royal Rider T3 StirrupRoyal Rider T3 Stirrup has a rotated shape that offers the foot a more correct position and provides better balance during the jump. In the event of a fall, the more open arch allows the foot to free itself quickly. T3 Stirrups require very little maintenance, just rinse with water as needed. Every pair of stirrups includes an extra pair of non slip rubber pads. 4 tread.